Let d be (-4)/6 - (-52)/6. Suppose s + 3*t + 0 = d, 0 = -s + 2*t + 18. Solve -c + 2*k = c - s, -5*c - 3*k + 3 = 0 for c.

3

Suppose 65 = 5*v + 5*k + 50, -k = 4*v - 3. Solve 2*d = 4*d - 6, 5*s - d + 18 = v for s.

-3

Let s be 3*2 + 12/(84/(-21)). Let m = 32 - 18. Solve 2*k = 3*z + s*k + 10, k = -5*z - m for z.

-2

Suppose -243 = -2*p + 3*j, p = j - 3*j + 104. Let s = 119 - p. Solve v - 3 = 1, -s*v + 18 = -l for l.

2

Suppose 5*b - 198 = 102. Suppose 4j - 4 = b. Let u be 2/(-3)-2*(-12)/(-4). Solve -h + u*r - 7 = -2*h, -5*h = r - j for h.

3

Let i(d) = d3 + 54*d2 + 56*d + 160. Let r be i(-53). Solve r = -s + z, 12 + 2 = s + 4*z for s.

2

Let k = -1855 - -1857. Solve k*c + 3*a = 5, 8*a - 3*a - 21 = 3*c for c.

-2

Let h(b) = b**2 - 30*b + 39. Let a be h(23). Let q = 125 + a. Solve t + 2 = -f, 4 = q*f + 16 for t.

2

Suppose -12*i + 10 = -10*i. Suppose -7*q = -4*d - 2*q - 17, -i*d = 3*q - 25. Solve s + 7 = -4*g + 1, -3*s = -4*g + d for s.

-2

Let h be 69⁄15 + 21/(-35) - 0. Suppose 3*b - 24 - 15 = 0. Suppose -x - 5*a + 1 = b, -2*x + 15 = -3*a. Solve -h*r = 5*u - 11, 0*u = x*u - 5*r - 14 for u.

3